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View article: Phoebus Tools and Services
Phoebus Tools and Services Open
The Phoebus toolkit consists of a variety of control system applications providing user interfaces to control systems and middle-layer services. Phoebus is the latest incarnation of Control System Studio (CS-Studio), which has been redesig…
View article: Normalized gradient flow optimization in the training of ReLU artificial neural networks
Normalized gradient flow optimization in the training of ReLU artificial neural networks Open
The training of artificial neural networks (ANNs) is nowadays a highly relevant algorithmic procedure with many applications in science and industry. Roughly speaking, ANNs can be regarded as iterated compositions between affine linear fun…
View article: Acoustic properties of metallic glasses at low temperatures: Tunneling systems and their dephasing
Acoustic properties of metallic glasses at low temperatures: Tunneling systems and their dephasing Open
The low temperature acoustic properties of bulk metallic glasses measured\nover a broad range of frequencies rigorously test the predictions of the\nstandard tunneling model. The strength of these experiments and their analyses\nis mainly …
View article: Publisher Correction: Resolving the positions of defects in superconducting quantum bits
Publisher Correction: Resolving the positions of defects in superconducting quantum bits Open
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
View article: Resolving the positions of defects in superconducting quantum bits
Resolving the positions of defects in superconducting quantum bits Open
Solid-state quantum coherent devices are quickly progressing. Superconducting circuits, for instance, have already been used to demonstrate prototype quantum processors comprising a few tens of quantum bits. This development also revealed …
View article: Dynamical decoupling of quantum two-level systems by coherent multiple Landau–Zener transitions
Dynamical decoupling of quantum two-level systems by coherent multiple Landau–Zener transitions Open
Increasing and stabilizing the coherence of superconducting quantum circuits and resonators is of utmost importance for various technologies, ranging from quantum information processors to highly sensitive detectors of low-temperature radi…
View article: Probing individual tunneling fluctuators with coherently controlled tunneling systems
Probing individual tunneling fluctuators with coherently controlled tunneling systems Open
Josephson junctions made from aluminium and its oxide are the most commonly used functional elements for superconducting circuits and qubits. It is generally known that the disordered thin-film AlOx contains atomic tunneling systems. Coher…
View article: Electronic decoherence of two-level systems in a Josephson junction
Electronic decoherence of two-level systems in a Josephson junction Open
The sensitivity of superconducting qubits allows for spectroscopy and\ncoherence measurements on individual two-level systems present in the\ndisordered tunnel barrier of an $\\mathrm{Al/AlO_x/Al}$ Josephson junction. We\nreport experiment…
View article: Rabi noise spectroscopy of individual two-level tunneling defects
Rabi noise spectroscopy of individual two-level tunneling defects Open
Understanding the nature of two-level tunneling defects is important for\nminimizing their disruptive effects in various nano-devices. By exploiting the\nresonant coupling of these defects to a superconducting qubit, one can probe\nand coh…
View article: Decoherence spectroscopy with individual two-level tunneling defects
Decoherence spectroscopy with individual two-level tunneling defects Open
Recent progress with microfabricated quantum devices has revealed that an ubiquitous source of noise originates in tunneling material defects that give rise to a sparse bath of parasitic two-level systems (TLSs). For superconducting qubits…